Question

$CHCl_{3}$ does not give precipitate with $AgNO_{3}$ although it has 3 Cl atoms while KCl does. Why?

Answer 1

In $CH{ Cl }_{ 3 }$ , chlorine atoms are attached to the central carbon atoms through a covalent bond therefore, $CH{ Cl }_{ 3 }$ is a covalent molecule. So, these are not dissociated into it’s ions.

Therefore, $CH{ Cl }_{ 3 }$ does not form precipitate while reacting with $AgN{ O }_{ 3 }$.

KCl is ionic molecule reacts with silver nitrate to form white coloured silver chloride precipitate.

The chemical reaction between KCl and $AgN{ O }_{ 3 }$ is as follows.

$KCl\quad +\quad Ag{ NO }_{ 3 }\quad \quad \rightarrow \quad AgCl\quad +\quad K{ NO }_{ 3 }$